Attachment for portable hammer drill



FIG. 1 is a perspective view of top, front, and right side of an attachment for portable hammer drill showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is an alternate perspective view thereof; and,

FIG. 9 is a perspective view of top, front, and right side with detachable hammer drill.

The broken lines and the areas within the broken lines are included for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an attachment for portable hammer drill, as shown and described. 